From: Alim Akhtar <alim.akhtar@samsung.com>
Date: Thu, 28 May 2020 06:46:52 +0530
Subject: scsi: ufs: Introduce UFSHCD_QUIRK_PRDT_BYTE_GRAN quirk
Git-commit: 26f968d7de823ba4974a8f25c8bd8ee2df6ab74b
Patch-mainline: v5.9-rc1
References: bsc#1187000

Some UFS host controllers like Exynos uses granularities of PRDT length and
offset as bytes, whereas others use actual segment count.

Link: https://lore.kernel.org/r/20200528011658.71590-5-alim.akhtar@samsung.com
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Kiwoong Kim <kwmad.kim@samsung.com>
Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Lee Duncan <lduncan@suse.com>
---
 drivers/scsi/ufs/ufshcd.h |    6 ++++++
 1 file changed, 6 insertions(+)

--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -529,6 +529,12 @@ enum ufshcd_quirks {
 	 * enabled via HCE register.
 	 */
 	UFSHCI_QUIRK_BROKEN_HCE				= 1 << 8,
+
+	/*
+	 * This quirk needs to be enabled if the host controller regards
+	 * resolution of the values of PRDTO and PRDTL in UTRD as byte.
+	 */
+	UFSHCD_QUIRK_PRDT_BYTE_GRAN			= 1 << 9,
 };
 
 /**